Democritus

Virtue isn't not wronging others but not wishing to wrong others.

Beautiful objects are wrought by study through effort, but ugly things are reaped automatically without toil.

One should practice much sense, not much learning.

Nature and education are somewhat similar. The latter transforms man, and in so doing creates a second nature.

It is godlike ever to think on something beautiful and on something new.

If thou suffer injustice, console thyself; the true unhappiness is in doing it.

The wrongdoer is more unfortunate than the man wronged.

I would rather discover one true cause than gain the kingdom of Persia.

Men should strive to think much and know little.

Our sins are more easily remembered than our good deeds.

Happiness resides not in possessions, and not in gold, happiness dwells in the soul.

Men find happiness neither by means of the body nor through possessions, but through uprightness and wisdom.

If your desires are not great, a little will seem much to you; for small appetite makes poverty equivalent to wealth.

Envy creates the beginning of strife.

To a wise and good man the whole earth is his fatherland.

Do not trust all men, but trust men of worth; the former course is silly, the latter a mark of prudence.

Poor mind, from the senses you take your arguments, and then want to defeat them? Your victory is your defeat.

Now as of old the gods give men all good things, excepting only those that are baneful and injurious and useless. These, now as of old, are not gifts of the gods: men stumble into them themselves because of their own blindness and folly.

Sweet exists by convention, bitter by convention, color by convention; but in reality atoms and the void alone exist

The brave man is not only he who overcomes the enemy, but he who is stronger than pleasures. Some men are masters of cities, but are enslaved to women.

Medicine heals diseases of the body, wisdom frees the soul from passions.